Version 1.0.0

©2004 BetabugsAudio

Welcome

Thank you for downloading this fine plug-in from BetabugsAudio. As withevery plug-in we make, we have packed as much functionality as possibleinto a streamlined user interface.

Crayon Filter is a multi-band filter plug-in. It is very simple to use, iscompletely controllable with MIDI CC, and fully supports the VST 2.3standard.

In order to get the most out of the Crayon Filter, please spend a fewmoments reading this brief manual.

License

Crayon Filter has a very simple license:

1. Crayon Filter is freeware. This means that you are free to distribute it,give it to friends, or otherwise share it around. However, only theentire unaltered archive, including this document, may be re-distributed.

2. Copyright of the code and the finished plug-in remain the property ofBetabugsAudio and Crayon Filter's author, Exponent

3. This plug-in is provided at no cost; therefore the author andBetabugsAudio assume no responsibility for any damage that mayoccur to the end user or the equipment used to run the plug-in.

4. Magazine editors are free to include the plug-in on covermount CDs orsimilar media; however, we request that you inform a member of theBetabugs team by e-mail in order to advise us. We certainly wouldn'tsay “no” to a few copies of the publication, either!

©2004 BetabugsAudio

Feedback / Bug Reports

We are always eager to hear feedback or have bugs reported. The easiestway is to visit the Bughouse user forum, found at BetabugsAudio.com.

Controls

Crayon 's controls can be divided into three different regions:

1.Master Display section2.Band controls3.Filter controls

Let's have a closer look:

©2004 BetabugsAudio

1. Master Display

Values displayed here

Click for direct link to BetabugsAudio.com

The master section is not actually a control; rather, it provides usefulcontext-sensitive information. As you adjust each control, a small messagewill be displayed in the value box, relating to the value that is beingmodified.

For example, as you adjust the cutoff, you will get a frequency displayed inthe value box, in Hertz.

2. Band Controls

LP: Low PassBP: Band PassHP: High PassN: NotchP: Peak

LP BP HP N P

The band controls allow you to add a type of filter to the output of thesignal. You can engage up to five filter types at once (one of each type).

– Low Pass attenuates high frequencies, giving your sound a “dull” feel.

– Band Pass attenuates both above and below the cutoff frequency, for a“thin” or “nasal” sound

– High Pass removes low frequency signals

– Notch removes just a small band of frequencies from the signal

– Peak boosts a small band of frequencies in your audio

©2004 BetabugsAudio

3. Filter Controls

Cutoff

Resonance

Drive

– Cutoff controls the corner frequency of the filter. All filter types use thecutoff value as their reference frequency, and if multiple filter types areselected, they will all share the same cutoff.

– Resonance controls the amount of peak given to the cutoff frequency.On band and notch filters, this controls the width of the peak instead.When resonance reaches 100%, the filter will start to self-oscillate in asine wave pattern. If you do not wish for this effect, simply back thecontrol off a little.

– Drive determines the amount of saturation that is applied to the inputsignal. High levels will produce lots of overdrive. At its most extremesetting, a sine wave will be mapped to a square wave!

MIDI Control Information

Crayon responds to MIDI continuous controllers (CC). They are assignedas follows:

Cutoff 50Resonance 51Drive 52LP on/off 53BP on/off 54HP on/off 55NOTCH on/off 56PEAK on/off 57

©2004 BetabugsAudio

Version History

1.0.0 First release!

Credits

– GUI and all other graphical elements: Mully– Programming and code: Exponent– Documentation: Lunch

©2004 BetabugsAudio